Active staggered opposed paddle straw cleaning device

Abstract

An active staggered and opposed paddle straw cleaning device is mounted right in front of a seeding unit and is characterized by comprising a profiling mechanism, a connecting plate, a mounting frame, a side plate, a left-handed paddle straw cleaning component, a right-handed paddle straw cleaning component and a gear motor, and the top of the mounting frame is connected with the profiling mechanism through the connecting plate and connected to a seeding machine frame through the profiling mechanism; a left-handed propeller straw cleaning component and a right-handed propeller straw cleaning component are respectively mounted on two side plates below the mounting frame; the left-handed propeller blade straw cleaning component and the right-handed propeller blade straw cleaning component are oppositely mounted in a staggered manner; the two speed reduction motors are installed on the outer sides of the two side plates below the installation frame respectively and drive the two straw cleaning components to rotate at a high speed, and seedling belt straw cleaning is achieved. The paddle straw cleaning device has the function of transversely pushing straw towards the two sides, transverse displacement of the straw is increased, and the seedling belt straw cleaning effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to an active staggered opposed blade straw cleaning device. Background Art

[0002] Conservation tillage covers the ground with crop straw by carrying out less or no tillage on farmland, thus reducing soil erosion and improving soil fertility. In the mode of returning all the straw to the field, there is a large amount of straw on the ground, which will cause the sowing machine to be blocked. The working principle of the seedling belt straw cleaning device is to clean the straw of the seedling belt to the space between two adjacent seedling belts on the straw-covered surface, so as to carry out sowing operations in the clean seedling belt. There are two main types of seedling belt straw cleaning devices: passive and active. The active straw cleaning device is driven by mechanical or hydraulic means, with high speed and good cleaning effect, but it moves a large amount of soil. The passive straw cleaning device rotates by friction with the soil and straw, which is prone to slippage and has limited ability to clean straw. Therefore, it is necessary to study a new type of straw cleaning device to solve the technical problems existing in the prior art. Utility Model Content

[0003] In view of the above-mentioned technical problems, the utility model provides an active staggered opposed blade straw cleaning device, which, when working, produces an axial pushing effect on the straw, increases the lateral displacement of the straw, and improves the straw cleaning effect in the seedling belt.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The utility model discloses an active staggered opposed paddle straw cleaning device, which is installed in front of a sowing unit, and comprises a profiling mechanism, a connecting plate, a mounting frame, a side plate, a left-handed paddle straw cleaning component, a right-handed paddle straw cleaning component, and a reduction motor. The top of the mounting frame is connected to the profiling mechanism through a connecting plate, and is connected to a seeder frame through the profiling mechanism; the left-handed paddle straw cleaning component and the right-handed paddle straw cleaning component are respectively installed on two side plates below the mounting frame; the left-handed paddle straw cleaning component and the right-handed paddle straw cleaning component are installed in a staggered and opposed manner; two reduction motors are respectively installed on the outer sides of the two side plates below the mounting frame, and the output shafts of the two reduction motors are respectively connected to the left-handed and right-handed paddle straw cleaning components, so as to drive the two straw cleaning components to rotate at a high speed, so as to realize the cleaning of straw in the seedling belt.

[0006] Furthermore, the left-handed straw cleaning component and the right-handed straw cleaning component have an angle α with the forward direction, and the angle α ranges from 30 to 45 degrees. The depth h of the left-handed and right-handed straw cleaning components into the soil is 10 to 30 mm, the center longitudinal spacing y is 100 to 120 mm, and the lateral spacing x is 110 mm, ensuring that the straw contact points of the two paddle blade straw cleaning components overlap in the lateral direction, thereby reducing the leakage of straw in the middle of the seedling belt.

[0007] Furthermore, the left / right rotating blade straw cleaning component includes a left / right rotating blade and a left / right rotating mounting wheel, and multiple left / right rotating blades are evenly distributed along the circumference of the left / right rotating mounting wheel. The installation angle of the left-hand rotating blade is β1, and the installation angle of the right-hand rotating blade is β2. The installation angle is the angle between the blade surface of the left / right rotating blade and the disk surface of the mounting wheel, and the range is 30-60 degrees.

[0008] Furthermore, the edge line of the soil-entering portion of the left / right-hand rotating blade end adopts an eccentric arc curve, which has a sliding cutting effect on the soil and straw, reducing the resistance to entering the soil.

[0009] Furthermore, the eccentric circular arc curve establishes a polar coordinate system with the center O1 of the left / right rotating mounting wheel of the blade straw cleaning component, the eccentricity between the center O2 of the eccentric circle and the coordinate origin O1 is 110 mm, the radius R1 of the eccentric circle is 150 mm, and the intersection line of the eccentric circular curve and the left / right rotating blade is the end edge line of the left / right rotating blade.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model is driven by a reduction motor, and the left-hand and right-hand blade straw cleaning parts are installed in a staggered manner. Under the cleaning action of the left-hand blade straw cleaning part and the right-hand blade straw cleaning part, an axial pushing effect is produced on the straw, thereby increasing the lateral displacement of the straw and improving the straw cleaning effect of the seedling belt.

[0012] 2. The limitations on the angle α between the left-hand and right-hand straw cleaning parts and the forward direction, the center longitudinal spacing y, the lateral spacing x and the soil penetration depth h of the utility model can ensure that the straw contact points of the two paddle straw cleaning parts overlap in the horizontal direction, reducing the leakage of straw in the middle of the seedling belt.

[0013] 3. The installation angle of the left-hand and right-hand rotating blades of the utility model is limited, and the edge line of the end portion entering the soil adopts an eccentric arc curve, which has a sliding cutting effect on the soil and straw, reducing the resistance to entering the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is an axonometric drawing of the present utility model.

[0016] Figure 3 It is a schematic diagram of the left-handed and right-handed straw cleaning parts and the positions of the straws when the utility model is working.

[0017] Figure 4 for Figure 3 Top view of the .

[0018] Figure 5 It is a schematic diagram of the eccentric arc curve of the blade line of the left-hand and right-hand straw cleaning blades entering the soil.

[0019] In the figure: 1. profiling mechanism, 2. connecting plate, 3. mounting frame, 4. side plate, 5. left-handed paddle blade for cleaning straw, 51. left mounting wheel disc, 52 left-handed paddle blade for cleaning straw, 6. right-handed paddle blade for cleaning straw, 61. right mounting wheel disc, 62 right-handed paddle blade for cleaning straw, 7. reduction motor, 8. straw contact point, 9. straw layer, 10. soil layer, L is the cleaning width of the seedling strip, and h is the depth of soil entry. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0021] Implementation: 1: As Figure 1-Figure 3 As shown, the utility model is an active staggered opposed paddle straw cleaning device, which is installed in front of the sowing unit, including a profiling mechanism 1, a connecting plate 2, a mounting frame 3, a side plate 4, a left-handed paddle straw cleaning component 5, a right-handed paddle straw cleaning component 6, and a reduction motor 7. The top of the mounting frame 3 is connected to the profiling mechanism 1 through the connecting plate 2, and is connected to the seeder frame through the profiling mechanism 1; the left-handed paddle straw cleaning component 5 and the right-handed paddle straw cleaning component 6 are respectively installed on the two side plates below the mounting frame 3; the left-handed paddle straw cleaning component 5 and the right-handed paddle straw cleaning component 6 are staggered and oppositely installed; two reduction motors 7 are respectively installed on the outer sides of the two side plates below the mounting frame 3, and the output shafts of the two reduction motors 7 are respectively connected to the left-handed and right-handed paddle straw cleaning components 5 and 6, so as to drive the two straw cleaning components to rotate at high speed, so as to realize the cleaning of the straw in the seedling belt.

[0022] like Figure 4 As shown, the left-handed paddle blade straw cleaning component 5 and the right-handed paddle blade straw cleaning component 6 both have an angle α with the forward direction, and the angle α ranges from 30 to 45 degrees. In this example, α is 35 degrees. The depth h of the left-handed and right-handed paddle blade straw cleaning components 5 and 6 into the soil is 10 to 30 mm, and in this example, h is 20 mm. The center longitudinal spacing y is 100 to 120 mm, and in this example, y is 110 mm. The lateral spacing x is 110 mm, which ensures that the straw contact points of the two paddle blade straw cleaning components overlap in the lateral direction to reduce the leakage of straw in the middle of the seedling belt.

[0023] like Figure 4 As shown, the left / right rotating blade straw cleaning component 5 / 6 includes a left / right rotating blade 52 / 62 and a left / right rotating mounting disc 51 / 61, and a plurality of left / right rotating blades 52 / 62 are evenly distributed along the circumference of the left / right rotating mounting disc 51 / 61. The installation deflection angle of the left-hand rotating blade 52 is β1, and the installation deflection angle of the right-hand rotating blade 62 is β2. The installation deflection angle is the angle between the blade surface of the left / right rotating blade 52 / 62 and the disc surface of the mounting disc 51 / 61, and the range is 30-60 degrees.

[0024] like Figure 5As shown, the edge line of the part of the end of the left / right rotating blade 52 / 62 that enters the soil adopts an eccentric arc curve, which has a sliding cutting effect on the soil and straw, reducing the resistance to entering the soil.

[0025] The eccentric circular arc curve establishes a polar coordinate system with the center O1 of the left / right rotating mounting wheel 51 / 61 of the blade straw cleaning component, the eccentricity between the center O2 of the eccentric circle and the coordinate origin O1 is 110 mm, the radius R1 of the eccentric circle is 150 mm, and the intersection line of the eccentric circular curve and the left / right rotating blade 52 / 62 is the end edge line of the left / right rotating blade 52 / 62, which has a sliding cutting effect on the soil and straw and reduces the resistance to entering the soil.

[0026] When the utility model is in use, it is connected to the seed drill frame through the profiling mechanism 1, and the two reduction motors 7 respectively drive the left / right rotating blades 52 / 62 to rotate. Due to the longitudinal staggered installation, the straw contact points 8 of the two blades can be guaranteed to overlap in the horizontal direction during the operation, thereby reducing the leakage of straw in the middle of the seedling belt; and the straw is pushed axially, increasing the lateral displacement of the straw and improving the straw cleaning effect of the seedling belt. The left / right rotating blade 52 / 62 can pass through the straw layer 9 and enter the soil layer 10, and its soil penetration depth h is 10-30mm. At this time, the seedling belt cleaning width L is 190-240mm, and the appropriate soil penetration depth can be selected according to the seedling belt cleaning width and the soil movement requirement.

[0027] Embodiment 2: This embodiment is different from Embodiment 1 in that the angle α between the left-handed blade cleaning component 5 and the right-handed blade cleaning component 6 and the advancing direction is 30 degrees, the depth h of the left-handed and right-handed cleaning components 5 and 6 into the soil is 10 mm, the longitudinal center spacing y is 100 mm, and the transverse spacing x is 110 mm, which can ensure that the contact points of the two blade cleaning components overlap in the transverse direction, reducing the leakage of the straw in the middle of the seedling belt. The installation deflection angle β1 of the left-handed blade 52 and the installation deflection angle β2 of the right-handed blade 62 are both 30 degrees.

[0028] Embodiment 3: This embodiment is different from Embodiment 1 in that the angle α between the left-handed blade cleaning component 5 and the right-handed blade cleaning component 6 and the advancing direction is 45 degrees, the depth h of the left-handed and right-handed blade cleaning components 5 and 6 into the soil is 30 mm, the longitudinal center spacing y is 120 mm, and the transverse spacing x is 110 mm, which can ensure that the contact points of the two blade cleaning components overlap in the transverse direction, reducing the leakage of the straw in the middle of the seedling belt. The installation deflection angle β1 of the left-handed blade 52 and the installation deflection angle β2 of the right-handed blade 62 are both 60 degrees.

[0029] The components not described in detail in this application are all existing conventional technologies and will not be described in detail here.

[0030] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. An active staggered blade straw cleaning device, installed in front of the sowing unit, characterized by: It includes a profiling mechanism, a connecting plate, a mounting frame, a side plate, a left-handed paddle blade straw cleaning component, a right-handed paddle blade straw cleaning component, and a reduction motor. The top of the mounting frame is connected to the profiling mechanism through a connecting plate, and is connected to the seeder frame through the profiling mechanism; the left-handed paddle blade straw cleaning component and the right-handed paddle blade straw cleaning component are respectively installed on the two side plates below the mounting frame; the left-handed paddle blade straw cleaning component and the right-handed paddle blade straw cleaning component are installed in a staggered manner; two reduction motors are respectively installed on the outer sides of the two side plates below the mounting frame, and the output shafts of the two reduction motors are respectively connected to the left-handed paddle blade straw cleaning components and the right-handed paddle blade straw cleaning components to drive the two straw cleaning components to rotate at high speed to achieve the cleaning of straw in the seedling belt.

2. The active staggered opposing blade straw cleaning device according to claim 1, characterized in that: The left-handed straw cleaning component and the right-handed straw cleaning component both have an angle α with the forward direction, and the angle α ranges from 30 to 45 degrees. The depth h of the left-handed and right-handed straw cleaning components into the soil is 10 to 30 mm, the center longitudinal spacing y is 100 to 120 mm, and the lateral spacing x is 110 mm, ensuring that the straw contact points of the two paddle blade straw cleaning components overlap in the lateral direction, thereby reducing the leakage of straw in the middle of the seedling belt.

3. The active staggered opposing blade straw cleaning device according to claim 1, characterized in that: The left / right rotating blade straw cleaning component includes a left / right rotating blade and a left / right rotating mounting wheel. A plurality of left / right rotating blades are evenly distributed along the circumference of the left / right rotating mounting wheel. The mounting angle of the left-hand rotating blade is β1, and the mounting angle of the right-hand rotating blade is β2. The mounting angle is the angle between the surface of the left / right rotating blade and the surface of the mounting wheel, and the range is 30-60 degrees.

4. The active staggered opposing blade straw cleaning device according to claim 3, characterized in that: The edge line of the soil-entering part of the left / right rotating blade end adopts an eccentric arc curve, which has a sliding cutting effect on the soil and straw and reduces the soil entry resistance.

5. The active staggered opposed blade straw cleaning device according to claim 4, characterized in that: The eccentric circular arc curve establishes a polar coordinate system with the center O1 of the left / right rotating mounting wheel of the blade straw cleaning component. The eccentricity between the center O2 of the eccentric circle and the coordinate origin O1 is 110 mm, the radius R1 of the eccentric circle is 150 mm, and the intersection line of the eccentric circular curve and the left / right rotating blade is the end edge line of the left / right rotating blade.

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